Longer time-to-pregnancy in spontaneously conceived pregnancies is associated with lower PAPP-A and free β-hCG in first trimester screening for Down syndrome
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资源简介：
Longer time-to-pregnancy in spontaneously conceived pregnancies is associated with lower PAPP-A and free β-hCG in first trimester screening for Down syndrome
搜集汇总
数据集介绍
背景与挑战
背景概述
该数据集研究了自然受孕妊娠中备孕时间与唐氏综合征早期筛查指标的关系，发现较长的备孕时间与较低的PAPP-A和游离β-hCG水平相关。
以上内容由遇见数据集搜集并总结生成
